(E)-1-((1R,2S,6S,7S)-3,3-Dioxo-3λ6-thia-4-aza-tricyclo[5.2.1.02,6]dec-8-en-4-yl)-but-2-en-1-one

7-(triethylsilyl)-10-((E)-2-butenoyl)-14β-hydroxy-10-deacetylbaccatin III 1,14-carbonate

4,7-Dimethyl-2,5-dioxo-3,4-dihydro-2H,5H-pyrano[4,3-b]pyran-8-carboxylic acid methyl ester

(-)-(3S,3aR,6S,6aS)-5-[(2E)-but-2-enoyl]-1,6-dimethyl-3-phenylhexahydroisothiazolo[4,5-c]isoxazole 4,4-dioxide